Software⏱️ 2 min read📅 2026-05-29

How to Fix: What is actual cause of "404 Not Found" error when run "npm

Error when publishing with .npmrc file and valid token

Quick Answer: Check the registry settings in your .npmrc file for any typos or incorrect values.

The "404 Not Found" error when running `npm publish` with a valid `.npmrc` file and token, but not publishing without it, can be caused by several factors. One possible reason is that the token in your `.npmrc` file may have expired or been revoked.

🔍 Why This Happens

  • [Cause]

✅ Best Solutions to Fix It

Method 1: Verify Token Expiration

  1. Step 1: Check the token expiration date in your `.npmrc` file and update it if necessary.

Method 2: Revoke and Reissue Token

  1. Step 1: Go to the [NPM Token Management](https://npmjs.org/auth/token) page and revoke your current token.

💡 Conclusion

By following these steps, you should be able to resolve the "404 Not Found" error and successfully publish your package using `npm publish` with or without a `.npmrc` file.

Did this fix your problem?

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